Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 342
ng imbedded in its centre. The PaschallInterlocking System of Steel Bar Construction Vault Lights; 3-Way PlainLens; 3-Way Wired Plain Lens; 3-WAY Prisms; 3-Way Wired Prisms for VaultLights; Wrought Steel Beam Construction, galvanized or black. 3-Way Prisms are a form of window glass scientifically… … 3-WAY PRISMS INSTALLED IN LOBBY OF BROAD S TREET STATION, (Phil.^delphia) PENNSYLVANIA R. R.This installation of 3-Way Prisms enables the Pennsylvania Railroad to turn out some 300 incandescent lights.The natural light from the sky is carried and diffused to a distance of 300 ft. with most…
Building materials
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